semicircular ear canal

semicircular ear canal
fluid-filled canals embedded in the cranium and concerned with balance and hearing. Gnathostomata have 3 canals, lampreys have 2 (lacking a horizontal canal), and hagfishes have only one canal, perhaps appearing secondarily by the joining of two canals. Fossil Cyclostomata my have had 7 or more semicircular canals. Each canal and otolith camera has an inner area (the macula or spot) covered with a receptor epithelium

Dictionary of ichthyology. 2009.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Ear canal — External acoustic meatus Anatomy of the human ear. Latin meatus acusticus externus Gray s …   Wikipedia

  • Semicircular canal — Exterior of labyrinth …   Wikipedia

  • ear, human — ▪ anatomy Introduction       organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium).  The human ear, like …   Universalium

  • ear disease — ▪ human Introduction       any of the diseases or disorders that affect the human ear and hearing.       Impaired hearing (deafness) is, with rare exception, the result of disease or abnormality of the outer, middle, or inner ear. Serious… …   Universalium

  • Ear — The hearing organ. There are three sections of the ear, according to the anatomy textbooks. They are the outer ear (the part we see along the sides of our head behind the temples), the middle ear, and the inner ear. But in terms of function, the… …   Medical dictionary

  • Ear — The ear is the sense organ that detects sounds. The vertebrate ear shows a common biology from fish to humans, with variations in structure according to order and species. It not only acts as a receiver for sound, but plays a major role in the… …   Wikipedia

  • semicircular canal — each of the three fluid filled sections of the ear canal that assist in maintaining balance and hearing …   English contemporary dictionary

  • Ear — Ear, n. [AS. e[ a]re; akin to OFries. [ a]re, [ a]r, OS. ?ra, D. oor, OHG. ?ra, G. ohr, Icel. eyra, Sw. [ o]ra, Dan. [ o]re, Goth. auso, L. auris, Lith. ausis, Russ. ukho, Gr. ?; cf. L. audire to hear, Gr. ?, Skr. av to favor, protect. Cf.… …   The Collaborative International Dictionary of English

  • Ear finger — Ear Ear, n. [AS. e[ a]re; akin to OFries. [ a]re, [ a]r, OS. ?ra, D. oor, OHG. ?ra, G. ohr, Icel. eyra, Sw. [ o]ra, Dan. [ o]re, Goth. auso, L. auris, Lith. ausis, Russ. ukho, Gr. ?; cf. L. audire to hear, Gr. ?, Skr. av to favor, protect. Cf.… …   The Collaborative International Dictionary of English

  • Ear of Dionysius — Ear Ear, n. [AS. e[ a]re; akin to OFries. [ a]re, [ a]r, OS. ?ra, D. oor, OHG. ?ra, G. ohr, Icel. eyra, Sw. [ o]ra, Dan. [ o]re, Goth. auso, L. auris, Lith. ausis, Russ. ukho, Gr. ?; cf. L. audire to hear, Gr. ?, Skr. av to favor, protect. Cf.… …   The Collaborative International Dictionary of English

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”